|
%I #4 Mar 31 2012 12:35:40
%S 0,3432,8385127334900305,6691944921318182113271713149120,
%T 560802479516289977082608657662771140464350896000,
%U 2224408910230139891062284534118773609167351452658037731567555400000
%N Number of 7*n X n 0..2 arrays with row sums 3 and column sums 21
%H R. H. Hardin, <a href="/A172708/b172708.txt">Table of n, a(n) for n=1..10</a>
%K nonn
%O 1,2
%A _R. H. Hardin_ Feb 06 2010
| 